SOA-C03 sample questions

Question 1

A CloudOps team is managing a fleet of Amazon EC2 instances running a legacy Java application. The team needs to monitor the memory utilization of these instances to right-size the fleet. However, the default Amazon CloudWatch metrics do not provide this data. Which action should the team take to collect this specific metric?

Accepted Answer

Install and configure the unified CloudWatch agent on the instances.

Answer

Enable detailed monitoring on the EC2 instances via the AWS Management Console.

Answer

Create a VPC Flow Log and publish it to CloudWatch Logs.

Answer

Use AWS CloudTrail to capture memory usage events.

Question 2

A financial institution requires a complex monitoring setup for their transaction processing system. They need to trigger an automated remediation workflow only when three distinct conditions are met simultaneously: High CPU on the web tier, High Database Connections on the RDS tier, and High Latency on the Application Load Balancer. Which CloudWatch feature should be used to minimize noise and trigger the workflow only when all conditions are true?

Accepted Answer

Configure a CloudWatch Composite Alarm with a boolean logic expression (ALARM(CpuAlarm) AND ALARM(DbAlarm) AND ALARM(LatencyAlarm)).

Answer

Create three separate CloudWatch alarms and subscribe the same SNS topic to all of them.

Answer

Use Amazon EventBridge to filter for individual alarm state changes and aggregate them using a Lambda function.

Answer

Create a Metric Math expression in a CloudWatch Dashboard to visualize the correlation.

Question 3

An organization manages multiple AWS accounts using AWS Organizations. The Operations Manager wants a single pane of glass to view critical metrics from all member accounts in the management account. What is the most efficient way to achieve this?

Accepted Answer

Create a CloudWatch cross-account observability link in the monitoring account and link the source accounts.

Answer

Use AWS CloudTrail to replicate all logs to a central S3 bucket and use Athena to query metrics.

Answer

Write a Lambda function to poll metrics from each account and push them to a custom namespace in the management account.

Answer

Configure VPC Peering between all accounts to allow CloudWatch traffic to flow to the management account.

Question 4

A serverless application using AWS Lambda is experiencing intermittent high latency. To troubleshoot the issue, the CloudOps engineer needs to visualize the service map and identify the specific segment causing the bottleneck. Which service should be enabled and configured?

Accepted Answer

AWS X-Ray

Answer

Amazon Inspector

Answer

VPC Flow Logs

Answer

AWS Config

Question 5

An e-commerce database running on Amazon EC2 is using 1 TB General Purpose SSD (gp2) EBS volumes. The database is hitting the IOPS limit of the volume, causing performance degradation. The team wants to increase performance without increasing the volume size or migrating to Provisioned IOPS (io1/io2) if possible to keep costs low. What is the BEST course of action?

Accepted Answer

Modify the volume to General Purpose SSD (gp3).

Answer

Stripe multiple gp2 volumes together using RAID 0.

Answer

Increase the gp2 volume size to 2 TB.

Answer

Switch the instance type to an EBS-optimized instance.

Question 6

A media company needs to upload 500 GB video files from on-premises locations in Europe and Asia to an S3 bucket in the us-east-1 Region. The uploads are currently slow and frequently fail due to network instability. The solution must maximize upload speed and reliability over the public internet. Which combination of strategies should be implemented? (Select TWO)

Accepted Answer

Enable S3 Transfer Acceleration on the bucket.

Accepted Answer

Use the S3 multipart upload API.

Answer

Use AWS Direct Connect.

Answer

Configure S3 Intelligent-Tiering.

Answer

Use AWS Global Accelerator with an Application Load Balancer.

Question 7

An Amazon RDS for PostgreSQL database is experiencing intermittent spikes in CPU utilization that correlate with slow application response times. The CloudOps engineer needs to identify the exact SQL queries causing the load. Which tool provides this level of granularity?

Accepted Answer

Amazon RDS Performance Insights

Answer

Amazon CloudWatch Metrics

Answer

Enhanced Monitoring

Answer

VPC Flow Logs

Question 8

A fleet of EC2 instances occasionally becomes unresponsive due to a memory leak in a background agent. The operations team manually SSHs into instances to restart the service. They want to automate this remediation using a standard AWS tool without maintaining custom Lambda code. Which solution fits best?

Accepted Answer

Use AWS Systems Manager Run Command to execute a shell script that restarts the service.

Answer

Configure a cron job on each instance to restart the service every hour.

Answer

Use Amazon EventBridge to trigger an EC2 Stop/Start action.

Answer

Use AWS CloudFormation to redeploy the stack when the issue occurs.

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Free SOA-C03 sample questions

An organization manages multiple AWS accounts using AWS Organizations. The Operations Manager wants a single pane of glass to view critical metrics from all member accounts in the management account. What is the most efficient way to achieve this?

A serverless application using AWS Lambda is experiencing intermittent high latency. To troubleshoot the issue, the CloudOps engineer needs to visualize the service map and identify the specific segment causing the bottleneck. Which service should be enabled and configured?

An Amazon RDS for PostgreSQL database is experiencing intermittent spikes in CPU utilization that correlate with slow application response times. The CloudOps engineer needs to identify the exact SQL queries causing the load. Which tool provides this level of granularity?

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